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Vishay General Semiconductor - Diodes Division P4KE120CA-E3/54
- Part No.:
- P4KE120CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE120CA-E3/54.pdf
- Description:
- TVS DIODE 102VWM 165VC DO204AL
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4KE120CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features a 102 V standoff voltage (VWM), 114–126 V breakdown voltage (VBR) at 1 mA, 165 V maximum clamping voltage (VC) at 2.4 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the P4KE120CA-E3/54 datasheet, P4KE120CA-E3/54 pinout, P4KE120CA-E3/54 application, or P4KE120CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 mechanical compatibility, AEC-Q101 qualification, thermal resistance (RθJL = 66 °C/W), and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %), low incremental surge resistance, and fast response time (<1 ns) to ESD and lightning-induced surges.
The P4KE120CA-E3/54 is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient per Figure 2; its 1.5 W steady-state power dissipation (PD) and 66 °C/W junction-to-lead thermal resistance support reliable operation under repetitive transient stress when mounted on PCB copper areas or leads with adequate thermal mass.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 102 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 114–126 V at 1 mA - Avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 165 V at IPPM = 2.4 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 400 W - Maximum transient energy absorption capability with standard 10/1000 μs waveform; validates robustness against IEC 61000-4-5 surges. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max. | 175 °C - Enables use in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. |
| AEC-Q101 Qualified | Yes - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. Bidirectional construction means no polarity marking - both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Either terminal serves as input/output for bidirectional clamping; no cathode band marking required. |
| Lead 1 / Lead 2 | Thermal and electrical interface | Leads provide primary heat dissipation path (RθJL = 66 °C/W); 10 mm lead length used for thermal characterization. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR over lifetime and improved humidity resistance vs. non-passivated alternatives. |
| 400 W peak pulse power (10/1000 μs) | Validates protection against severe surges per IEC 61000-4-5 Level 4 (4 kV line-earth, 2 kV line-line). |
| AEC-Q101 qualified | Confirms suitability for automotive powertrain, body control, and ADAS modules requiring extended temperature and reliability validation. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during transient events, reducing risk of damage to downstream 120 V-rated components. |
| 1.0 μA max reverse leakage at VWM | Preserves low-power operation in always-on sensor nodes and battery-backed systems without compromising protection. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V/24 V vehicle battery feed lines exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and microcontrollers. Use Value: Clamps transients up to 165 V while sustaining 400 W pulses, preventing latch-up or gate oxide damage in downstream FETs and regulators. |
Use Scenario: 4–20 mA current loop or RS-485 bus lines in factory automation PLCs subject to inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional shunt protector across differential signal pairs or supply rails. Use Value: Symmetrical clamping eliminates need for dual unidirectional devices; 1.0 μA leakage avoids signal offset errors in precision analog front-ends. |
| Consumer Equipment AC/DC Input Stage | Telecom Power Supply Surge Protection |
Use Scenario: Secondary-side DC output of offline SMPS in set-top boxes and smart home hubs. IC Role / Device Role / Timing Role: Final-stage overvoltage clamp before LDOs or USB power switches. Use Value: 175 °C TJ max. supports compact layouts with limited airflow; DO-41 footprint allows manual or wave-solder rework without redesign. |
Use Scenario: -48 V telecom rectifier outputs exposed to lightning-induced surges on central office distribution lines. IC Role / Device Role / Timing Role: Standoff-rated protector on DC feed prior to hot-swap controllers and POL converters. Use Value: 102 V VWM provides 20 % margin above nominal -48 V rail (|48 V| × √2 ≈ 68 V), accommodating ripple and fault conditions without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA | DO-214AA package; 100 V VWM, 114–126 V VBR, 177 V VC at 2.25 A; 600 W PPPM. | Higher power rating but larger footprint; better suited for board space-constrained designs needing >400 W margin. | Select SMBJ120CA when higher surge margin or surface-mount assembly is required; not pin-compatible with DO-41. |
| 1.5KE120CA | DO-201AD package; same VWM/VBR/VC specs; 1500 W PPPM; 1.5 W PD; RθJL = 10 °C/W. | Higher thermal conductivity and surge capacity; requires larger PCB pad area and lead trimming for mounting. | Choose 1.5KE120CA for high-reliability industrial power supplies where 1500 W surge headroom and lower thermal resistance are critical. |
Compared with SMBJ120CA and 1.5KE120CA, the P4KE120CA-E3/54 offers optimal balance of proven automotive qualification, axial-leaded serviceability, and cost-effective 400 W protection in legacy DO-41 layouts - making it ideal for second-source replacement and long-lifecycle industrial designs.
Availability
P4KE120CA-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power supplies, and consumer power adapter designs requiring stable component supply across multi-year production cycles.
Supply support for P4KE120CA-E3/54 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4KE120CA-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of the P4KE120CA-E3/54 at its rated peak pulse current?
The P4KE120CA-E3/54 has a maximum clamping voltage (VC) of 165 V at 2.4 A peak pulse current (IPPM), measured using the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet Document Number 88365, Table on page 2. The P4KE120CA-E3/54 maintains this clamping performance across its full operating temperature range.
Is the P4KE120CA-E3/54 suitable for automotive applications?
Yes, the P4KE120CA-E3/54 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet revision 16-Sep-2021. It undergoes stress testing for temperature cycling, high-temperature reverse bias, and ESD per JESD22 standards. Its 175 °C maximum junction temperature and DO-41 package with matte tin plating meet automotive under-hood environmental requirements. The P4KE120CA-E3/54 is commonly deployed in body control modules and infotainment power rails.
How does the bidirectional configuration of the P4KE120CA-E3/54 affect its circuit implementation?
The P4KE120CA-E3/54 has symmetrical avalanche characteristics in both directions, eliminating polarity concerns during placement. Unlike unidirectional TVS diodes, it requires no cathode band identification and can be installed in either orientation across power rails or signal lines. This simplifies BOM management and reduces assembly errors - especially valuable in high-mix manufacturing where the P4KE120CA-E3/54 replaces two unidirectional devices in differential or AC-coupled paths.
What is the thermal resistance specification for the P4KE120CA-E3/54, and how does it impact layout design?
The P4KE120CA-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W, measured with 10 mm lead length. This parameter governs heat transfer from the silicon die to the PCB copper or chassis via the leads. To maintain safe junction temperatures during repetitive surges, designers should ensure adequate copper pour on both leads and avoid excessive trace length - critical because the P4KE120CA-E3/54 relies primarily on conduction through leads rather than PCB pads for thermal relief.
Does the P4KE120CA-E3/54 have RoHS and REACH compliance documentation?
Yes, the "E3" suffix in P4KE120CA-E3/54 indicates RoHS-compliant construction per EU Directive 2011/65/EU, with lead-free matte tin plating and halogen-free molding compound meeting Vishay's material categorization standard (Document Number 99912). Full substance declarations and test reports for the P4KE120CA-E3/54 are available through Vishay's compliance portal and authorized distributors such as Digi-Key and Mouser.
P4KE120CA-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 2.4A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE120CA-E3/54 FAQ
1.How can I place an order for P4KE120CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE120CA-E3/54 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P4KE120CA-E3/54 reliable?
The price and inventory of P4KE120CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE120CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE120CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE120CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE120CA-E3/54?
P4KE120CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE120CA-E3/54 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P4KE120CA-E3/54?
For technical support, including P4KE120CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE120CA-E3/54 requirements.
6.How does Aetrix verify that P4KE120CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE120CA-E3/54 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P4KE120CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE120CA-E3/54?
All P4KE120CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE120CA-E3/54, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P4KE120CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE120CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE120CA-E3/54 Tags
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